Line data Source code
1 : use std::io;
2 : use std::sync::Arc;
3 : use std::time::Duration;
4 :
5 : use async_trait::async_trait;
6 : use hyper_util::rt::{TokioExecutor, TokioIo, TokioTimer};
7 : use p256::ecdsa::SigningKey;
8 : use p256::elliptic_curve::JwkEcKey;
9 : use rand::rngs::OsRng;
10 : use tokio::net::{lookup_host, TcpStream};
11 : use tracing::field::display;
12 : use tracing::{debug, info};
13 :
14 : use super::conn_pool::poll_client;
15 : use super::conn_pool_lib::{Client, ConnInfo, GlobalConnPool};
16 : use super::http_conn_pool::{self, poll_http2_client, Send};
17 : use super::local_conn_pool::{self, LocalConnPool, EXT_NAME, EXT_SCHEMA, EXT_VERSION};
18 : use crate::auth::backend::local::StaticAuthRules;
19 : use crate::auth::backend::{ComputeCredentials, ComputeUserInfo};
20 : use crate::auth::{self, check_peer_addr_is_in_list, AuthError};
21 : use crate::compute;
22 : use crate::compute_ctl::{
23 : ComputeCtlError, ExtensionInstallRequest, Privilege, SetRoleGrantsRequest,
24 : };
25 : use crate::config::ProxyConfig;
26 : use crate::context::RequestMonitoring;
27 : use crate::control_plane::client::ApiLockError;
28 : use crate::control_plane::errors::{GetAuthInfoError, WakeComputeError};
29 : use crate::control_plane::locks::ApiLocks;
30 : use crate::control_plane::CachedNodeInfo;
31 : use crate::error::{ErrorKind, ReportableError, UserFacingError};
32 : use crate::intern::EndpointIdInt;
33 : use crate::proxy::connect_compute::ConnectMechanism;
34 : use crate::proxy::retry::{CouldRetry, ShouldRetryWakeCompute};
35 : use crate::rate_limiter::EndpointRateLimiter;
36 : use crate::types::{EndpointId, Host, LOCAL_PROXY_SUFFIX};
37 :
38 : pub(crate) struct PoolingBackend {
39 : pub(crate) http_conn_pool: Arc<super::http_conn_pool::GlobalConnPool<Send>>,
40 : pub(crate) local_pool: Arc<LocalConnPool<tokio_postgres::Client>>,
41 : pub(crate) pool: Arc<GlobalConnPool<tokio_postgres::Client>>,
42 :
43 : pub(crate) config: &'static ProxyConfig,
44 : pub(crate) auth_backend: &'static crate::auth::Backend<'static, ()>,
45 : pub(crate) endpoint_rate_limiter: Arc<EndpointRateLimiter>,
46 : }
47 :
48 : impl PoolingBackend {
49 0 : pub(crate) async fn authenticate_with_password(
50 0 : &self,
51 0 : ctx: &RequestMonitoring,
52 0 : user_info: &ComputeUserInfo,
53 0 : password: &[u8],
54 0 : ) -> Result<ComputeCredentials, AuthError> {
55 0 : let user_info = user_info.clone();
56 0 : let backend = self.auth_backend.as_ref().map(|()| user_info.clone());
57 0 : let (allowed_ips, maybe_secret) = backend.get_allowed_ips_and_secret(ctx).await?;
58 0 : if self.config.authentication_config.ip_allowlist_check_enabled
59 0 : && !check_peer_addr_is_in_list(&ctx.peer_addr(), &allowed_ips)
60 : {
61 0 : return Err(AuthError::ip_address_not_allowed(ctx.peer_addr()));
62 0 : }
63 0 : if !self
64 0 : .endpoint_rate_limiter
65 0 : .check(user_info.endpoint.clone().into(), 1)
66 : {
67 0 : return Err(AuthError::too_many_connections());
68 0 : }
69 0 : let cached_secret = match maybe_secret {
70 0 : Some(secret) => secret,
71 0 : None => backend.get_role_secret(ctx).await?,
72 : };
73 :
74 0 : let secret = match cached_secret.value.clone() {
75 0 : Some(secret) => self.config.authentication_config.check_rate_limit(
76 0 : ctx,
77 0 : secret,
78 0 : &user_info.endpoint,
79 0 : true,
80 0 : )?,
81 : None => {
82 : // If we don't have an authentication secret, for the http flow we can just return an error.
83 0 : info!("authentication info not found");
84 0 : return Err(AuthError::password_failed(&*user_info.user));
85 : }
86 : };
87 0 : let ep = EndpointIdInt::from(&user_info.endpoint);
88 0 : let auth_outcome = crate::auth::validate_password_and_exchange(
89 0 : &self.config.authentication_config.thread_pool,
90 0 : ep,
91 0 : password,
92 0 : secret,
93 0 : )
94 0 : .await?;
95 0 : let res = match auth_outcome {
96 0 : crate::sasl::Outcome::Success(key) => {
97 0 : info!("user successfully authenticated");
98 0 : Ok(key)
99 : }
100 0 : crate::sasl::Outcome::Failure(reason) => {
101 0 : info!("auth backend failed with an error: {reason}");
102 0 : Err(AuthError::password_failed(&*user_info.user))
103 : }
104 : };
105 0 : res.map(|key| ComputeCredentials {
106 0 : info: user_info,
107 0 : keys: key,
108 0 : })
109 0 : }
110 :
111 0 : pub(crate) async fn authenticate_with_jwt(
112 0 : &self,
113 0 : ctx: &RequestMonitoring,
114 0 : user_info: &ComputeUserInfo,
115 0 : jwt: String,
116 0 : ) -> Result<ComputeCredentials, AuthError> {
117 0 : match &self.auth_backend {
118 0 : crate::auth::Backend::ControlPlane(console, ()) => {
119 0 : self.config
120 0 : .authentication_config
121 0 : .jwks_cache
122 0 : .check_jwt(
123 0 : ctx,
124 0 : user_info.endpoint.clone(),
125 0 : &user_info.user,
126 0 : &**console,
127 0 : &jwt,
128 0 : )
129 0 : .await?;
130 :
131 0 : Ok(ComputeCredentials {
132 0 : info: user_info.clone(),
133 0 : keys: crate::auth::backend::ComputeCredentialKeys::None,
134 0 : })
135 : }
136 : crate::auth::Backend::Local(_) => {
137 0 : let keys = self
138 0 : .config
139 0 : .authentication_config
140 0 : .jwks_cache
141 0 : .check_jwt(
142 0 : ctx,
143 0 : user_info.endpoint.clone(),
144 0 : &user_info.user,
145 0 : &StaticAuthRules,
146 0 : &jwt,
147 0 : )
148 0 : .await?;
149 :
150 0 : Ok(ComputeCredentials {
151 0 : info: user_info.clone(),
152 0 : keys,
153 0 : })
154 : }
155 : }
156 0 : }
157 :
158 : // Wake up the destination if needed. Code here is a bit involved because
159 : // we reuse the code from the usual proxy and we need to prepare few structures
160 : // that this code expects.
161 0 : #[tracing::instrument(fields(pid = tracing::field::Empty), skip_all)]
162 : pub(crate) async fn connect_to_compute(
163 : &self,
164 : ctx: &RequestMonitoring,
165 : conn_info: ConnInfo,
166 : keys: ComputeCredentials,
167 : force_new: bool,
168 : ) -> Result<Client<tokio_postgres::Client>, HttpConnError> {
169 : let maybe_client = if force_new {
170 : info!("pool: pool is disabled");
171 : None
172 : } else {
173 : info!("pool: looking for an existing connection");
174 : self.pool.get(ctx, &conn_info)?
175 : };
176 :
177 : if let Some(client) = maybe_client {
178 : return Ok(client);
179 : }
180 : let conn_id = uuid::Uuid::new_v4();
181 : tracing::Span::current().record("conn_id", display(conn_id));
182 : info!(%conn_id, "pool: opening a new connection '{conn_info}'");
183 0 : let backend = self.auth_backend.as_ref().map(|()| keys);
184 : crate::proxy::connect_compute::connect_to_compute(
185 : ctx,
186 : &TokioMechanism {
187 : conn_id,
188 : conn_info,
189 : pool: self.pool.clone(),
190 : locks: &self.config.connect_compute_locks,
191 : },
192 : &backend,
193 : false, // do not allow self signed compute for http flow
194 : self.config.wake_compute_retry_config,
195 : self.config.connect_to_compute_retry_config,
196 : )
197 : .await
198 : }
199 :
200 : // Wake up the destination if needed
201 0 : #[tracing::instrument(fields(pid = tracing::field::Empty), skip_all)]
202 : pub(crate) async fn connect_to_local_proxy(
203 : &self,
204 : ctx: &RequestMonitoring,
205 : conn_info: ConnInfo,
206 : ) -> Result<http_conn_pool::Client<Send>, HttpConnError> {
207 : info!("pool: looking for an existing connection");
208 : if let Ok(Some(client)) = self.http_conn_pool.get(ctx, &conn_info) {
209 : return Ok(client);
210 : }
211 :
212 : let conn_id = uuid::Uuid::new_v4();
213 : tracing::Span::current().record("conn_id", display(conn_id));
214 : info!(%conn_id, "pool: opening a new connection '{conn_info}'");
215 0 : let backend = self.auth_backend.as_ref().map(|()| ComputeCredentials {
216 0 : info: ComputeUserInfo {
217 0 : user: conn_info.user_info.user.clone(),
218 0 : endpoint: EndpointId::from(format!(
219 0 : "{}{LOCAL_PROXY_SUFFIX}",
220 0 : conn_info.user_info.endpoint.normalize()
221 0 : )),
222 0 : options: conn_info.user_info.options.clone(),
223 0 : },
224 0 : keys: crate::auth::backend::ComputeCredentialKeys::None,
225 0 : });
226 : crate::proxy::connect_compute::connect_to_compute(
227 : ctx,
228 : &HyperMechanism {
229 : conn_id,
230 : conn_info,
231 : pool: self.http_conn_pool.clone(),
232 : locks: &self.config.connect_compute_locks,
233 : },
234 : &backend,
235 : false, // do not allow self signed compute for http flow
236 : self.config.wake_compute_retry_config,
237 : self.config.connect_to_compute_retry_config,
238 : )
239 : .await
240 : }
241 :
242 : /// Connect to postgres over localhost.
243 : ///
244 : /// We expect postgres to be started here, so we won't do any retries.
245 : ///
246 : /// # Panics
247 : ///
248 : /// Panics if called with a non-local_proxy backend.
249 0 : #[tracing::instrument(fields(pid = tracing::field::Empty), skip_all)]
250 : pub(crate) async fn connect_to_local_postgres(
251 : &self,
252 : ctx: &RequestMonitoring,
253 : conn_info: ConnInfo,
254 : ) -> Result<Client<tokio_postgres::Client>, HttpConnError> {
255 : if let Some(client) = self.local_pool.get(ctx, &conn_info)? {
256 : return Ok(client);
257 : }
258 :
259 : let local_backend = match &self.auth_backend {
260 : auth::Backend::ControlPlane(_, ()) => {
261 : unreachable!("only local_proxy can connect to local postgres")
262 : }
263 : auth::Backend::Local(local) => local,
264 : };
265 :
266 : if !self.local_pool.initialized(&conn_info) {
267 : // only install and grant usage one at a time.
268 : let _permit = local_backend.initialize.acquire().await.unwrap();
269 :
270 : // check again for race
271 : if !self.local_pool.initialized(&conn_info) {
272 : local_backend
273 : .compute_ctl
274 : .install_extension(&ExtensionInstallRequest {
275 : extension: EXT_NAME,
276 : database: conn_info.dbname.clone(),
277 : version: EXT_VERSION,
278 : })
279 : .await?;
280 :
281 : local_backend
282 : .compute_ctl
283 : .grant_role(&SetRoleGrantsRequest {
284 : schema: EXT_SCHEMA,
285 : privileges: vec![Privilege::Usage],
286 : database: conn_info.dbname.clone(),
287 : role: conn_info.user_info.user.clone(),
288 : })
289 : .await?;
290 :
291 : self.local_pool.set_initialized(&conn_info);
292 : }
293 : }
294 :
295 : let conn_id = uuid::Uuid::new_v4();
296 : tracing::Span::current().record("conn_id", display(conn_id));
297 : info!(%conn_id, "local_pool: opening a new connection '{conn_info}'");
298 :
299 : let mut node_info = local_backend.node_info.clone();
300 :
301 : let (key, jwk) = create_random_jwk();
302 :
303 : let config = node_info
304 : .config
305 : .user(&conn_info.user_info.user)
306 : .dbname(&conn_info.dbname)
307 : .options(&format!(
308 : "-c pg_session_jwt.jwk={}",
309 : serde_json::to_string(&jwk).expect("serializing jwk to json should not fail")
310 : ));
311 :
312 : let pause = ctx.latency_timer_pause(crate::metrics::Waiting::Compute);
313 : let (client, connection) = config.connect(tokio_postgres::NoTls).await?;
314 : drop(pause);
315 :
316 : let pid = client.get_process_id();
317 : tracing::Span::current().record("pid", pid);
318 :
319 : let mut handle = local_conn_pool::poll_client(
320 : self.local_pool.clone(),
321 : ctx,
322 : conn_info,
323 : client,
324 : connection,
325 : key,
326 : conn_id,
327 : node_info.aux.clone(),
328 : );
329 :
330 : {
331 : let (client, mut discard) = handle.inner();
332 : debug!("setting up backend session state");
333 :
334 : // initiates the auth session
335 : if let Err(e) = client.query("select auth.init()", &[]).await {
336 : discard.discard();
337 : return Err(e.into());
338 : }
339 :
340 : info!("backend session state initialized");
341 : }
342 :
343 : Ok(handle)
344 : }
345 : }
346 :
347 0 : fn create_random_jwk() -> (SigningKey, JwkEcKey) {
348 0 : let key = SigningKey::random(&mut OsRng);
349 0 : let jwk = p256::PublicKey::from(key.verifying_key()).to_jwk();
350 0 : (key, jwk)
351 0 : }
352 :
353 0 : #[derive(Debug, thiserror::Error)]
354 : pub(crate) enum HttpConnError {
355 : #[error("pooled connection closed at inconsistent state")]
356 : ConnectionClosedAbruptly(#[from] tokio::sync::watch::error::SendError<uuid::Uuid>),
357 : #[error("could not connection to postgres in compute")]
358 : PostgresConnectionError(#[from] tokio_postgres::Error),
359 : #[error("could not connection to local-proxy in compute")]
360 : LocalProxyConnectionError(#[from] LocalProxyConnError),
361 : #[error("could not parse JWT payload")]
362 : JwtPayloadError(serde_json::Error),
363 :
364 : #[error("could not install extension: {0}")]
365 : ComputeCtl(#[from] ComputeCtlError),
366 : #[error("could not get auth info")]
367 : GetAuthInfo(#[from] GetAuthInfoError),
368 : #[error("user not authenticated")]
369 : AuthError(#[from] AuthError),
370 : #[error("wake_compute returned error")]
371 : WakeCompute(#[from] WakeComputeError),
372 : #[error("error acquiring resource permit: {0}")]
373 : TooManyConnectionAttempts(#[from] ApiLockError),
374 : }
375 :
376 0 : #[derive(Debug, thiserror::Error)]
377 : pub(crate) enum LocalProxyConnError {
378 : #[error("error with connection to local-proxy")]
379 : Io(#[source] std::io::Error),
380 : #[error("could not establish h2 connection")]
381 : H2(#[from] hyper::Error),
382 : }
383 :
384 : impl ReportableError for HttpConnError {
385 0 : fn get_error_kind(&self) -> ErrorKind {
386 0 : match self {
387 0 : HttpConnError::ConnectionClosedAbruptly(_) => ErrorKind::Compute,
388 0 : HttpConnError::PostgresConnectionError(p) => p.get_error_kind(),
389 0 : HttpConnError::LocalProxyConnectionError(_) => ErrorKind::Compute,
390 0 : HttpConnError::ComputeCtl(_) => ErrorKind::Service,
391 0 : HttpConnError::JwtPayloadError(_) => ErrorKind::User,
392 0 : HttpConnError::GetAuthInfo(a) => a.get_error_kind(),
393 0 : HttpConnError::AuthError(a) => a.get_error_kind(),
394 0 : HttpConnError::WakeCompute(w) => w.get_error_kind(),
395 0 : HttpConnError::TooManyConnectionAttempts(w) => w.get_error_kind(),
396 : }
397 0 : }
398 : }
399 :
400 : impl UserFacingError for HttpConnError {
401 0 : fn to_string_client(&self) -> String {
402 0 : match self {
403 0 : HttpConnError::ConnectionClosedAbruptly(_) => self.to_string(),
404 0 : HttpConnError::PostgresConnectionError(p) => p.to_string(),
405 0 : HttpConnError::LocalProxyConnectionError(p) => p.to_string(),
406 0 : HttpConnError::ComputeCtl(_) => "could not set up the JWT authorization database extension".to_string(),
407 0 : HttpConnError::JwtPayloadError(p) => p.to_string(),
408 0 : HttpConnError::GetAuthInfo(c) => c.to_string_client(),
409 0 : HttpConnError::AuthError(c) => c.to_string_client(),
410 0 : HttpConnError::WakeCompute(c) => c.to_string_client(),
411 : HttpConnError::TooManyConnectionAttempts(_) => {
412 0 : "Failed to acquire permit to connect to the database. Too many database connection attempts are currently ongoing.".to_owned()
413 : }
414 : }
415 0 : }
416 : }
417 :
418 : impl CouldRetry for HttpConnError {
419 0 : fn could_retry(&self) -> bool {
420 0 : match self {
421 0 : HttpConnError::PostgresConnectionError(e) => e.could_retry(),
422 0 : HttpConnError::LocalProxyConnectionError(e) => e.could_retry(),
423 0 : HttpConnError::ComputeCtl(_) => false,
424 0 : HttpConnError::ConnectionClosedAbruptly(_) => false,
425 0 : HttpConnError::JwtPayloadError(_) => false,
426 0 : HttpConnError::GetAuthInfo(_) => false,
427 0 : HttpConnError::AuthError(_) => false,
428 0 : HttpConnError::WakeCompute(_) => false,
429 0 : HttpConnError::TooManyConnectionAttempts(_) => false,
430 : }
431 0 : }
432 : }
433 : impl ShouldRetryWakeCompute for HttpConnError {
434 0 : fn should_retry_wake_compute(&self) -> bool {
435 0 : match self {
436 0 : HttpConnError::PostgresConnectionError(e) => e.should_retry_wake_compute(),
437 : // we never checked cache validity
438 0 : HttpConnError::TooManyConnectionAttempts(_) => false,
439 0 : _ => true,
440 : }
441 0 : }
442 : }
443 :
444 : impl ReportableError for LocalProxyConnError {
445 0 : fn get_error_kind(&self) -> ErrorKind {
446 0 : match self {
447 0 : LocalProxyConnError::Io(_) => ErrorKind::Compute,
448 0 : LocalProxyConnError::H2(_) => ErrorKind::Compute,
449 : }
450 0 : }
451 : }
452 :
453 : impl UserFacingError for LocalProxyConnError {
454 0 : fn to_string_client(&self) -> String {
455 0 : "Could not establish HTTP connection to the database".to_string()
456 0 : }
457 : }
458 :
459 : impl CouldRetry for LocalProxyConnError {
460 0 : fn could_retry(&self) -> bool {
461 0 : match self {
462 0 : LocalProxyConnError::Io(_) => false,
463 0 : LocalProxyConnError::H2(_) => false,
464 : }
465 0 : }
466 : }
467 : impl ShouldRetryWakeCompute for LocalProxyConnError {
468 0 : fn should_retry_wake_compute(&self) -> bool {
469 0 : match self {
470 0 : LocalProxyConnError::Io(_) => false,
471 0 : LocalProxyConnError::H2(_) => false,
472 : }
473 0 : }
474 : }
475 :
476 : struct TokioMechanism {
477 : pool: Arc<GlobalConnPool<tokio_postgres::Client>>,
478 : conn_info: ConnInfo,
479 : conn_id: uuid::Uuid,
480 :
481 : /// connect_to_compute concurrency lock
482 : locks: &'static ApiLocks<Host>,
483 : }
484 :
485 : #[async_trait]
486 : impl ConnectMechanism for TokioMechanism {
487 : type Connection = Client<tokio_postgres::Client>;
488 : type ConnectError = HttpConnError;
489 : type Error = HttpConnError;
490 :
491 0 : async fn connect_once(
492 0 : &self,
493 0 : ctx: &RequestMonitoring,
494 0 : node_info: &CachedNodeInfo,
495 0 : timeout: Duration,
496 0 : ) -> Result<Self::Connection, Self::ConnectError> {
497 0 : let host = node_info.config.get_host()?;
498 0 : let permit = self.locks.get_permit(&host).await?;
499 :
500 0 : let mut config = (*node_info.config).clone();
501 0 : let config = config
502 0 : .user(&self.conn_info.user_info.user)
503 0 : .dbname(&self.conn_info.dbname)
504 0 : .connect_timeout(timeout);
505 0 :
506 0 : let pause = ctx.latency_timer_pause(crate::metrics::Waiting::Compute);
507 0 : let res = config.connect(tokio_postgres::NoTls).await;
508 0 : drop(pause);
509 0 : let (client, connection) = permit.release_result(res)?;
510 :
511 0 : tracing::Span::current().record("pid", tracing::field::display(client.get_process_id()));
512 0 : Ok(poll_client(
513 0 : self.pool.clone(),
514 0 : ctx,
515 0 : self.conn_info.clone(),
516 0 : client,
517 0 : connection,
518 0 : self.conn_id,
519 0 : node_info.aux.clone(),
520 0 : ))
521 0 : }
522 :
523 0 : fn update_connect_config(&self, _config: &mut compute::ConnCfg) {}
524 : }
525 :
526 : struct HyperMechanism {
527 : pool: Arc<http_conn_pool::GlobalConnPool<Send>>,
528 : conn_info: ConnInfo,
529 : conn_id: uuid::Uuid,
530 :
531 : /// connect_to_compute concurrency lock
532 : locks: &'static ApiLocks<Host>,
533 : }
534 :
535 : #[async_trait]
536 : impl ConnectMechanism for HyperMechanism {
537 : type Connection = http_conn_pool::Client<Send>;
538 : type ConnectError = HttpConnError;
539 : type Error = HttpConnError;
540 :
541 0 : async fn connect_once(
542 0 : &self,
543 0 : ctx: &RequestMonitoring,
544 0 : node_info: &CachedNodeInfo,
545 0 : timeout: Duration,
546 0 : ) -> Result<Self::Connection, Self::ConnectError> {
547 0 : let host = node_info.config.get_host()?;
548 0 : let permit = self.locks.get_permit(&host).await?;
549 :
550 0 : let pause = ctx.latency_timer_pause(crate::metrics::Waiting::Compute);
551 :
552 0 : let port = *node_info.config.get_ports().first().ok_or_else(|| {
553 0 : HttpConnError::WakeCompute(WakeComputeError::BadComputeAddress(
554 0 : "local-proxy port missing on compute address".into(),
555 0 : ))
556 0 : })?;
557 0 : let res = connect_http2(&host, port, timeout).await;
558 0 : drop(pause);
559 0 : let (client, connection) = permit.release_result(res)?;
560 :
561 0 : Ok(poll_http2_client(
562 0 : self.pool.clone(),
563 0 : ctx,
564 0 : &self.conn_info,
565 0 : client,
566 0 : connection,
567 0 : self.conn_id,
568 0 : node_info.aux.clone(),
569 0 : ))
570 0 : }
571 :
572 0 : fn update_connect_config(&self, _config: &mut compute::ConnCfg) {}
573 : }
574 :
575 0 : async fn connect_http2(
576 0 : host: &str,
577 0 : port: u16,
578 0 : timeout: Duration,
579 0 : ) -> Result<(http_conn_pool::Send, http_conn_pool::Connect), LocalProxyConnError> {
580 : // assumption: host is an ip address so this should not actually perform any requests.
581 : // todo: add that assumption as a guarantee in the control-plane API.
582 0 : let mut addrs = lookup_host((host, port))
583 0 : .await
584 0 : .map_err(LocalProxyConnError::Io)?;
585 :
586 0 : let mut last_err = None;
587 :
588 0 : let stream = loop {
589 0 : let Some(addr) = addrs.next() else {
590 0 : return Err(last_err.unwrap_or_else(|| {
591 0 : LocalProxyConnError::Io(io::Error::new(
592 0 : io::ErrorKind::InvalidInput,
593 0 : "could not resolve any addresses",
594 0 : ))
595 0 : }));
596 : };
597 :
598 0 : match tokio::time::timeout(timeout, TcpStream::connect(addr)).await {
599 0 : Ok(Ok(stream)) => {
600 0 : stream.set_nodelay(true).map_err(LocalProxyConnError::Io)?;
601 0 : break stream;
602 : }
603 0 : Ok(Err(e)) => {
604 0 : last_err = Some(LocalProxyConnError::Io(e));
605 0 : }
606 0 : Err(e) => {
607 0 : last_err = Some(LocalProxyConnError::Io(io::Error::new(
608 0 : io::ErrorKind::TimedOut,
609 0 : e,
610 0 : )));
611 0 : }
612 : };
613 : };
614 :
615 0 : let (client, connection) = hyper::client::conn::http2::Builder::new(TokioExecutor::new())
616 0 : .timer(TokioTimer::new())
617 0 : .keep_alive_interval(Duration::from_secs(20))
618 0 : .keep_alive_while_idle(true)
619 0 : .keep_alive_timeout(Duration::from_secs(5))
620 0 : .handshake(TokioIo::new(stream))
621 0 : .await?;
622 :
623 0 : Ok((client, connection))
624 0 : }
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